Your home router is no longer just a box that beams Netflix to your TV. In lab after lab, researchers have shown that the same WiFi signals that connect your laptop can also map your body through ...

Comcast's Xfinity has introduced a new feature in its internet routers called Wi-Fi Motion, which uses Wi-Fi signals to detect movement in your home, whether from people, pets or other moving objects.

Imagine tracking your heartbeat without strapping on a smartwatch or touching any gadget, just by sitting within range of your Wi-Fi. This is made possible with Pulse-Fi, a system recently unveiled by ...

Investigators searching for Nancy Guthrie reportedly used a helicopter-mounted "signal sniffer" to detect her pacemaker ...